Re: [RFC PATCH 0/2] mm: fix OOMs for binding workloads to movable zone only node
From: Michal Hocko
Date: Fri Nov 06 2020 - 05:36:01 EST
On Fri 06-11-20 17:08:57, Feng Tang wrote:
[...]
> You are right, there are quiet several types of page allocations failures.
> The callstack in patch 2/2 is a GFP_HIGHUSER from pipe_write, and there
> are more types of kernel allocation requests which will got blocked by
> the differnt check. My RFC patch just gave a easiest one-for-all hack to
> let them bypass it.
>
> Do we need to tackle them case by case?
No, I do not think, how we can change those __GFP_HARDWALL without
breaking the isolation.
--
Michal Hocko
SUSE Labs